docs: add tamojit-123 as a contributor

[allcontributors]

Adds @tamojit-123 as a contributor for code, design, doc, maintenance, content.

This was requested by tamojit-123 in this comment

[tamojit-123]

@all-contributors please add @tamojit-123 for code, design, maintenance, idea

[allcontributors]

@tamojit-123

This project's configuration file has malformed JSON: .all-contributorsrc. Error:: Unexpected token ] in JSON at position 108

[tamojit-123]

@all-contributors please add @tamojit-123 for code, design, maintenance, idea

[allcontributors]

@tamojit-123

I've put up a pull request to add @tamojit-123! 🎉